Type-writing machine



(No Model.)

I. A. SALMON.

TYPE WRITING MACHINE.

No. 406,064. Patented July 2, 1889.

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\X/H EEEEE: Inventor:

M 97 Mfg/W N PE YERS. PhOkrLllhugmphar, Washington. D. c.

UNITED STATES PATENT OFFICE.

IRA A. SALMON, OF BOSTON, MASSACHUSETTS.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 406,064, dated July 2, 1889.

Application filed January 1'7, 1888. Serial No. 260,972. (No model.)

T0 all whom it may concern:

Be it known that LII-1A. A. SALMON, of llos ton, county of Suffolk, and State of Massachusetts, have invented an Improvement in Type-\Vriting Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

Thisinvention is an improvement upon the type-writing machine shown and described in United States Patent granted to John Becker, No. 350,717, dated October 12, 1886, and has for its object to provide suitable means for automatically rotating the paperfeedin g bar or roll by the movement of the index-plate.

In accordance with this invention a pawl or arm moved by an inclined rod or proj cction carried by the index-plate is adapted to engage and rotate the paper-feeding roll, the pawl or arm engaging pins or studs carried by the said feeding-roll, the inclination of the rod being such as to move the arm a definite distance, and thereby effect rotation of the feeding-roll a definite distance as the index-plate is moved in one direction, and to return the arm to its normal position as the indexplate is returned to its normal position. The arm or pawl is herein shown as adapted to engage a pin or stud of a disk carried by the feeding-roll at the right-hand side of the machine, and the inclined rod attached to the index-plate is arranged to move the said arm toward the operator and not rotate the feedroll as the said index-plate is moved from the left to the right hand side of the machine, and to move the said arm from the operator and rotate the said feed-roll as the indeX-.

plate is returned to its startingpoint or to the left-hand side of the machine.

Figure 1 shows in plan view a typeavriting machine of the kind referred to, the typecarrying segment, printing devices, and guard to hold the paper in position upon the paper-feeding roll being removed; Fig. 2, a right-hand end view showing a disk at the end of the feed-roll,to which the pin or studs are fixed, and also the arm for moving said disk; Fig. 3, a left-hand side view of the disk shown in Fig. 2; Fig. l,a similar view of Fig.

2, showing a different form of disk carried by the feed'roll and its arm; and Fig. 5, a lefthand side view of the disk shown in Fig. at.

The main frame-work A, mounted upon the base A, the paper-feeding roll a, the guide or feeding rod (0, the index-plate 13, having the guide-arms I) mounted to slide freely on the guide-rod a, and the printingleverf', are all as in the said patent, to which reference may be had. A rod n, bent to present an inclined portion 01 and a straight portion 12?, is fixed to the index-plate to move with it. The rod 11 passes freely through a hole cut in one end, as 3, of an arm or pawl m, placed between two guide-plates m.

The arm or pawl on has at its opposite end a hook, (see Fig. which engages a pin 4, fixed to a disk 5, mounted loosely upon the hub of a ratchet-wheel G, a spring-controlled pawl 7 being attached to the disk 5 and engaging the teeth of the ratchet-wheel ti to rotate it when the ratchet-wheel is moved in one direction. The ratchet-wheel o is fixed to the papei feedin g roll a.

\Vhen the index-plate is moved from the left-hand end of the machine toward the right, the arm m, following the inclination of I the rod 71, will be moved in the direction of the arrow, Fig. 2, toward the operator, moving the disk 5 with it, but not rotating the feed-roll a, and as the index'plate is returned to its normal position,or to the left-hand end of the machine, the arm m, following the inclined portion of the rod n, will be moved in the opposite direction,thereby moving the disk 5 in the opposite direction, and its pawl engaging the ratchet-wheel 6 rotates the feeding-roll a, a definite distance. It will be seen that as this movement is repeated the feed-roll a will be rotated intermittingly, While the disk 5 and its pin ii: serve as a reciprocating crank. To vary or change the Width of the lines apart, the arm in is made to engage any one of the pins 4: of the disk 5, which are located at different distances from the center, so that the throw of the disk may be more or less.

A pin 2 is fixed to one of the parts m just beneath the arm m, so that when the plate B is tipped backward to expose the printing the said arm on will. strike the said pin 2 and rock upon it as a fulcrum, the forward or toothed end of the arm disengaging the pin of the disks.

In Figs. 4c and 5 the disk 5 is fixed to the feed-roll a, and is provided with a series of pins, as 9, which are engaged successively by the toothed or notched end of the arm or,

pawl m, moved by the rod 12, as before described, the disk in this instance being moved forward intermittingly, and moving with it the feeding-roll a. In this modified form, to vary or change the Width of lines apart, the disk 5 will be provided on one side with, say, three pins, as 9, and upon the other side with, say, four pins, as 12, (see Fig. 5,) arranged each at regular distances apart, and the disk will be reversed on the rod a when it is desired to make such change.

If desired, the devices herein shown for moving the feeding-roll a may be located at the opposite end of the machine, and might also be in some respects modified without departing from this invent-ion.

I claim- 1. In a type-writing machine, the paperfeeding roll a, ratchet-wheel 6, fixed thereon, loose disk 5, mounted upon said wheel, the guide-rod a parallel to said roll, the longitudinally-slidin g index-plate mounted thereon, and the inclined rod 92, attached to said index-plate, combined with the hooked arm m, through which said rod a loosely passes, and guide-plates m for said arm, longitudinal movementof the index-plate and rod n actuating the arm m to rotate the paperfeeding roll intermittingly, substantially as described.

2. In a type-writing machine, the paperfeeding roll, ratchet-wheels 6, fixed thereto,

' the roll in one direction, and With means, substantially as described, controlled by the movement of the index-plate, for moving the said arm or pawl m, substantially as described.

3. I11 a type-Writing machine, the paperfeeding roll, the disk 5, carried by it, having several pins, as at, located at different distances from the center, combined with the arm m and means, substantially as described, controlled by the index-plate, for moving the said arm m to eifect the rotation of the said roll, substantially as described,

et. In a type-Writing machine, the paperfeeding roll a, the disk 5, having several pins 4: at different distances from the center, and arm m, adapted to engage the pins upon the disk 5 to rotate the paper-feeding roll a different distances, as described, combined with the inclined rod 02, for moving the said arm, substantially as described.

5. In a type-writing machine, the paperfeeding roll a, the plate B, the arm m, and

inclined rod, combined with the fulcrum-pin 2, upon which the arm may rock when the plate B is tipped back, substantially as and for the purpose setforth.

In testimony whereof I have signed my name to this specification in the presence of two snbseribin g witnesses.

IRA A. SALMON.

WV i in esses:

BERNICE J. NOYES, J. C. SEARS. 

